[GAMBIT] please help!!error meshing volume on sedan geometry

AbdulAzis · February 17, 2011, 05:16

please help me to create a volume and meshing volume sedan geometry,, i have try to meshing volume but still error..give me solution or i can send my file sedan geometry.

-mAx- · February 17, 2011, 08:45

describe your problem (pictures are always welcomed)

AbdulAzis · February 17, 2011, 21:55

i want to find Cd on the sedan geometry for my thesis,,i use BMW 320i for basic model on the gambit,,and redesign the windshield and back glass the car with the different inclination. I try to folow the steps on the tutorial sedan geometry but still error in creat a virtual volum and meshing volume..
may i know your email address??
i will send my file sedan geometry (gambit)

-mAx- · February 18, 2011, 01:20

what kind of error?

AbdulAzis · February 19, 2011, 00:40

on the comand list : check the conectivity at edge,,,thre are many edge..
what should i do??

-mAx- · February 21, 2011, 01:25

then connect all edges >> Edges/Connect

AbdulAzis · February 28, 2011, 23:27

the virtual volume has been create,,now the problem i am still error meshing virtual volume.
On the transcript list : error meshing volume v-volume 1 aborted due to poor mesh quality. The user may proceed by first remeshing the faces with the poor mesh quality.
volume v-volume 1 could not be meshed without face(s) successfully meshed.
What should i do??

-mAx- · March 1, 2011, 01:51

You need to do what gambit says: fixing the poor surface mesh.
you certainly have other warnings regarding surfaces which cannot be meshed successfully. Sometimes Gambit gives the surface ID, where meshing has failed.
So just see how looks the given surface(s)
And fix the problem

AbdulAzis · March 2, 2011, 00:20

i try to mesh volume,,and still caontains 2 inverted elements (negative volume)
why?? and what must i do next??

-mAx- · March 2, 2011, 02:29

try to find why.
Check where are those negative volumes (examine mesh, choose volume in the quality panel)

AbdulAzis · March 2, 2011, 22:44

i have done meshing volume,,now i want to cek the mesh file on the fluent. thank you

AbdulAzis · March 5, 2011, 22:42

i want to try find Cd using fluent,,but i am still confuse what should i fill in turbulence specification method, at intensity and lenghth scale (inlet)..
-intensity and viscosity ratio (outlet)
-Reference value : area ....

desert_1250 · August 13, 2011, 01:52

Hi, i have a quastion that mentioned above too. when i wanna create 3d mesh the error "could not be meshes without faces" has been apeared, would you explain me how solved this problem? i read the last posts but dont undrestand completely what to do

tnx
_____
Rasoul

-mAx- · August 16, 2011, 00:36

once volume mesh failed, go to examine mesh, select 2d, and enable worst elements.
Gambit will display the worst 2d-element which should be source of your error message

February 17, 2011, 05:16	please help!!error meshing volume on sedan geometry	#1
AbdulAzis New Member abdul azis Join Date: Feb 2011 Location: semarang, indonesia Posts: 9 Rep Power: 4	please help me to create a volume and meshing volume sedan geometry,, i have try to meshing volume but still error..give me solution or i can send my file sedan geometry.

February 17, 2011, 08:45		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 2,295 Rep Power: 24	describe your problem (pictures are always welcomed) __________________ In memory of my friend Hervé: CFD engineer & freerider

February 17, 2011, 21:55	the problem	#3
AbdulAzis New Member abdul azis Join Date: Feb 2011 Location: semarang, indonesia Posts: 9 Rep Power: 4	i want to find Cd on the sedan geometry for my thesis,,i use BMW 320i for basic model on the gambit,,and redesign the windshield and back glass the car with the different inclination. I try to folow the steps on the tutorial sedan geometry but still error in creat a virtual volum and meshing volume.. may i know your email address?? i will send my file sedan geometry (gambit)

February 18, 2011, 01:20		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 2,295 Rep Power: 24	what kind of error? __________________ In memory of my friend Hervé: CFD engineer & freerider

February 21, 2011, 01:25		#6
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 2,295 Rep Power: 24	then connect all edges >> Edges/Connect __________________ In memory of my friend Hervé: CFD engineer & freerider

February 19, 2011, 00:40		#5
AbdulAzis New Member abdul azis Join Date: Feb 2011 Location: semarang, indonesia Posts: 9 Rep Power: 4	on the comand list : check the conectivity at edge,,,thre are many edge.. what should i do??

February 28, 2011, 23:27	the new problem	#7
AbdulAzis New Member abdul azis Join Date: Feb 2011 Location: semarang, indonesia Posts: 9 Rep Power: 4	the virtual volume has been create,,now the problem i am still error meshing virtual volume. On the transcript list : error meshing volume v-volume 1 aborted due to poor mesh quality. The user may proceed by first remeshing the faces with the poor mesh quality. volume v-volume 1 could not be meshed without face(s) successfully meshed. What should i do??

March 1, 2011, 01:51		#8
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 2,295 Rep Power: 24	You need to do what gambit says: fixing the poor surface mesh. you certainly have other warnings regarding surfaces which cannot be meshed successfully. Sometimes Gambit gives the surface ID, where meshing has failed. So just see how looks the given surface(s) And fix the problem __________________ In memory of my friend Hervé: CFD engineer & freerider

March 2, 2011, 00:20	negative volume	#9
AbdulAzis New Member abdul azis Join Date: Feb 2011 Location: semarang, indonesia Posts: 9 Rep Power: 4	i try to mesh volume,,and still caontains 2 inverted elements (negative volume) why?? and what must i do next??

March 2, 2011, 02:29		#10
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 2,295 Rep Power: 24	try to find why. Check where are those negative volumes (examine mesh, choose volume in the quality panel) __________________ In memory of my friend Hervé: CFD engineer & freerider

March 2, 2011, 22:44		#11
AbdulAzis New Member abdul azis Join Date: Feb 2011 Location: semarang, indonesia Posts: 9 Rep Power: 4	i have done meshing volume,,now i want to cek the mesh file on the fluent. thank you

March 5, 2011, 22:42		#12
AbdulAzis New Member abdul azis Join Date: Feb 2011 Location: semarang, indonesia Posts: 9 Rep Power: 4	i want to try find Cd using fluent,,but i am still confuse what should i fill in turbulence specification method, at intensity and lenghth scale (inlet).. -intensity and viscosity ratio (outlet) -Reference value : area ....

August 13, 2011, 01:52	error to mesh 3d	#13
desert_1250 Member s.rasoul_varedi Join Date: Feb 2010 Posts: 74 Rep Power: 4	Hi, i have a quastion that mentioned above too. when i wanna create 3d mesh the error "could not be meshes without faces" has been apeared, would you explain me how solved this problem? i read the last posts but dont undrestand completely what to do tnx _____ Rasoul

August 16, 2011, 00:36		#14
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 2,295 Rep Power: 24	once volume mesh failed, go to examine mesh, select 2d, and enable worst elements. Gambit will display the worst 2d-element which should be source of your error message __________________ In memory of my friend Hervé: CFD engineer & freerider

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